Two different designs of analog correlators for radiometry are compared in this paper. A continuum correlator based on a microwave nonlinear device is a simple and inexpensive way to detect wide-band polarized signals. Analysis and extensive measurements including linearity, dynamic range, amplitude response, phase balance, and stability are presented, and the suitability of the designs for mic...

Interferometric synthetic aperture radiometry is a relative new technique in the area of microwave earth observation to measure the brightness temperature distribution of the earth. It can enhance the spatial resolution of the passive microwave remote sensing effectively. Steady progress of this technology have been achieved in both one dimensional and two dimensional cases since 1990’s. The ty...

Comparative planetology of the giant planets is key to the origin and evolution of the solar system and, by extension, extrasolar systems. In particular, elemental composition of well-mixed atmospheres is the most critical measurement, but it is also most challenging. This is because the well-mixed region for certain species lies well below the clouds, a deep region where measurements are diffi...

The treatment of chronic wounds, burns and scars is not easy to solve, because the most suitable dressing for wound care depends not only on the type of wound but also on the stage of the healing process. Wound dressing have been employed to speed up the healing process in acute and chronic wounds by keeping healing tissues moist and increasing superficial wound epithelialization [1,2]. Apart o...

Introduction: Nowadays radiosensitive polymer gels are used as a reliable dosimetry tool for verification of 3D dose distributions. Special characteristics of these dosimeters have made them useful for verification of complex dose distributions in clinical situations. The aim of this work was to evaluate the capability of a normoxic polymer gel to determine electron dose distributions in differ...

OBJECTIVE Microwave Radiometry is a non-invasive method which determines within seconds the in vivo temperature of internal tissues at a depth of 3-7 cm with an accuracy of ±0.2°C. In this proof-of-concept study, we tested the hypothesis that, in absence of relevant clinical signs, increased local temperature detected by microwave radiometry reflects subclinical synovial inflammation, using ult...

Radiometry is the measurement of radiant electromagnetic energy, especially that associated with the IR spectrum. It can be more simply defined as an absolute measurement of radiant flux. The typical unit of measure for imaging radiometry is radiance, which is expressed in units of Watts/(sr-cm2). (The abbreviation “sr” stands for steradian; a non-dimensional geometric ratio expressing the soli...

Abstract: Photothermal radiometry is an infrared remote sensing technique that has been used for skin and skin appendages research, in the areas of skin hydration, hydration gradient, skin hydration depth profiling, skin thickness measurements, skin pigmentation measurements, effect of topically applied substances, transdermal drug delivery, moisture content of bio-materials, membrane permeatio...

Pharmacokinetic parameters are important for calculating the absorbed dose; they also provide an indirect measure of in vivo stability a radiopharmaceutical. The aim study was to determine excretion rate activity 177 Lu-DOTA-PSMA-617 and MCA 5–10 microns, 188 Re, from blood urine patients undergoing systemic local radiotherapy clinical trials. Materials methods: involved radiometry samples 12 m...